Methods, systems, and devices for wireless communications are described. Some wireless communications networks may implement aspects of a single frequency network (SFN), which may support multicast and broadcast transmissions. In some cases, a base station may use directional beamforming techniques to transmit a message to a user equipment (UE) using a first frequency configuration of the SFN. The base station may adjust the first frequency configuration to a second frequency configuration, and may transmit a retransmission of the message to the UE using the second frequency configuration.
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4. The method of claim 2, wherein the first frequency configuration comprises a first set of tones allocated for the broadcast message and the second frequency configuration comprises a second set of tones allocated for the at least one retransmission of the broadcast message that are different than the first set of tones.
11. The method of claim 10, wherein the negative acknowledgement comprises a retransmission request associated with the broadcast message.
12. The method of claim 1, wherein the at least one retransmission is transmitted automatically.
14. The method of claim 1, wherein the single frequency network channel comprises a multimedia broadcast single frequency network channel.
24. The method of claim 23, wherein the negative acknowledgement comprises a retransmission request associated with the broadcast message.
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November 24, 2020
October 18, 2022
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